松翰單片機閃爍程序

//{{SONIX_CODE_OPTION
.Code_OptionWDT_CLKFlosc/4
.Code_OptionReset_PinP04
.Code_OptionLVDLVD_Max; 3.3V Reset
.Code_OptionWatch_DogDisable;關閉看門狗
.Code_OptionLow_FcpuFlosc/1
.Code_OptionHigh_ClkIHRC_16M; Internal 16M RC Oscillator
.Code_OptionHigh_FcpuFhosc/1
.Code_OptionSecurityEnable
.Code_OptionNoise_FilterEnable
code down:http://www.51hei.com/f/shssd.rar
//}}SONIX_CODE_OPTION

LEDEQUP0.2;LED連接口
LED0EQUP0M.2;I/o口輸入輸出狀態控制
ORG0
JMPA1
ORG15

A1:B0BSETLED0;設置P0.2為輸出狀態
B0BCLRLED;輸出低電平點亮LED
CALLM001;延時
B0BSETLED;輸出高電平熄滅LED
CALLM001;延時
JMPA1;循環執行程序

;******************************************
;延時子程序
;******************************************
M001:MOVA,#20
MOV51H,A
M002:MOVA,#248
MOV52H,A
M003:MOVA,#250
MOV53H,A
M004:DECMS53H
JMPM004
DECMS52H
JMPM003
DECMS51H
JMPM002
RET
;*****************************************
;程序結束
;*****************************************
ENDP